Table 223 Pptp Tunnel Authentication Parameters - Nortel BCM 3.7 Manual

Table 222 PPTP Tunnel Link parameters (Continued)
Attribute Description
Connect retries Allows you to specify the maximum number of times this tunnel attempts to connect to the
primary PPTP server. If a connection is not made after the specified number of retries, this
tunnel attempts to connect to the secondary PPTP server.
If a connection to the secondary PPTP server is not made after the specified number of retries,
the tunnel connection fails.
Enter a value from 0 to 10.
If you enter a value of 0, Business Communications Manager does not try to connect again.
Retry interval Allows you to specify the number of seconds Business Communications Manager waits
between connect retries.
Enter a value from 1 to 3600000 seconds.
Connection type Allows you to specify when the tunnel is established and when it is torn down.
A Persistent tunnel is brought up as soon as the Business Communications Manager starts.
The tunnel remains connected until Business Communications Manager shuts down or an
administrator manually disconnects the tunnel by changing the status to Down.
An On Demand connection is established only when the connectivity provided by it is needed.
Administrators specify the destination networks reachable through a tunnel in the Destination
Networks tab. When a packet bound for any of those destinations reaches this Business
Communications Manager, Business Communications Manager brings up this tunnel. An On
Demand tunnel is torn down when an administrator manually changes its status to Down or
after the Idle Timeout period as expires.
Idle timeout Allows you to specify how long Business Communications Manager waits when there is no
traffic on the tunnel before the PPTP tunnel is torn down.
Idle timeout only applies to tunnels that have a Connection type of on-demand. Persistent
PPTP tunnels are not automatically torn down.
Enter a value from 0 to 32000 seconds.
A value of 0 disables automatic tear down of the tunnel
Data Compression Allows you to specify if the data sent in this tunnel is compressed.
Select Enabled or Disabled.
7 Click the Tunnel Authentication Parameters tab.
The Tunnel Authentication Parameters screen appears.
8 Configure the Tunnel Authentication Parameters according to the following table.

Table 223 PPTP Tunnel Authentication parameters

Attribute Description
Authentication type Allows you to specify the type of authentication is used for this tunnel.
You can select: AllowClearText (PAP authentication), EncryptedOnly (CHAP authentication) or
Microsoft Encrypted Only (MS-CHAP). It is recommended that you use MS-CHAP if you are
using Data Encryption.
Two Way Allows you to enable or disable two way authentication for this tunnel.
Authentication
If you disable two way authentication, the client sends authentication parameters to the server
and server verifies the parameters.
If you enable two way authentication, the server verifies the client and the client verifies the
server.
Data encryption Allows you to specify the encryption method used for tunneled data.
You can choose no encryption (Disabled) or 40-bit encryption (Enabled).
PPTP
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